Milk-cooler



(N0 Model.)

M. 0. ROBERTS.

MILK COOLER.

No. 273,764. Patented Mer. 13,1883.

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la H//Q UNTTan STATES PATENT Ormes- MILTON O. ROBERTS, OF WORCESTER,PENNSYLVANIA.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 273,764, dated March13, 1883.

Application tiled November 15, 1882.

To all whom it may concern:

Beit known that I, MILTON O. ROBERTS, of' Worcester, in the county ofMontgomery and State of Pennsilvania, have invented an Improvement inMilk-Coolers, ot' which the following is a specitcation.

My invention has reference to milk-coolers; and it consists in certainimprovements in means to cause a circulation of the cooling- Water, andin the construction ot' the milkcooler as an entirety, all of which isfully set forth in the following' specification and shown in theaccompanyingdrawings,which form part thereof.

In the drawings, Figure l is a perspeciive View of my improvedmilk-cooler. Fig. 2 is a sectional elevation of same on line m. Fig. 3is a sectional plan of same on line y y. Fig. 4 is a crosssection ot'same on line z z,- and Fig. 5 is a plan view, showing a moditiedarrangement of the means to guide the circulation of the water.

A is the water-tank. B is a frame supported upon the upper rim or edgeot' the water tank, and carries the tanks or milk-vats O O O, of which Iprefer three, the said tanks or vats being connected together at thebottoms by tubular connections D D, to allow the milk and cream tocirculate from one vat to another. These vats hang clear ofthe bottomand sides and leave spaces between themselves for the circulation ofwater. Divisions G Gr' cause the Water to circulate in a sinuous curve,passing along one side ot' one ot' the outer vats, then back between theother side and the adjacent vat, and so on, the cold water starting froma chamber, L, and being received in a chamber, K, these chambers L and Kbeing separated from each other by a division, F, in which is arranged arotating feed-wheel, ar-

ranged, like a screw-propeller, with many blades, the said feed-wheel Hbeing rotated by a shaft, I, and pulley J, or other equivalent means.The compartment or chamber K may act as the icebox. Fresh water may beadmitted by a pipe, O', and the waste may run oft' by a waste-pipe, O.The chamber L is closed by a case or cover, L', having` an apperture, m,on one side and close to the top, which opens into a trough, M, providedwith spoutsm',arrangedoverthe vats O,and adapted (No model.)

to pass feed-water into pans N, supported above said vats and formingcooling-covers to saine. The water in'coinpartinent L is caused to riseabove the level of that in compartment K by creating a great suctionthrough the agency ofthe wheel H, the water being more rapidly drawn inthan it can escape through the passages around the tank. The pans N arepreferably provided with tubular vents n, to allow escape of the odorsand vapors arising from the milk-vat. The cold water runs off from thesepans, by spouts n', into 'a trough, N', and is conducted back into thetank A by pipe N2. l do not confine myself' to the exact constructionot' these troughs'` as the water may be conveyed back to the tank by apipe or aperture direct from the pans, and water may be i'ed into thepans by pipes direct l'rom chamber K or from main O', it' so desired.

R is a wooden cover to cover the pans and vats, and is preferably hingedto frame B.

E is the tap to draw oi' the milk and cream.

In place of causing the cold water to pass first on one side ol thcmilk-vat and then on the other, coming into contact with only one sideat a time, I may dispense with the divisions G G' and bring the divisionF up against the middle vat, C, as shown in Fig. 5, and then thecirculation will be caused to take place in such a manner as to passdown both sides ot' one ofthe outer vats and one side ofthe middle. vat,and then return in the opposite direction, but in contact with theremaining side ot' the middle vat and other outer vat. This is clearlyshown.

The divisions G and G' (and F in the case of Fig. 5) may extend along'the bottom ofthe tank to insure more perfect circulation, and also actas a support tor the vats C; or, if desired, the bottom ofthe milk-vatemay be provided with ribs to perform the same function.

The circulating propeller-wheel is shown in another pending applicationof mine, but is claimed in another construction of milk-cooler.

Having now described lny invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a milk-cooler, the combination of a water-tank, a milk-vat, arotating circulatingwheel, and means for directing the water-'currents,so that the water shall be continually changing its position, andthereby cool the milk in the milk-vat, substantially as and for thepurpose specified.

2. In a milk-cooler, the combination of a watertank, a milk-vat, an icebox or compartment,'a rotating Water-circulating Wheel,l

ranged over said milk-vats, means t0 cause the' Water from the closedchamber to How into said pans, and means to cause the water from saidclosed chamber to circulate around said milkvats and back into theicebox or open chamber, substantially as and for the purpose speced.

4. In a milkcooler, the combination of watertank A, milk-pans U,connected by tubesD,

chambers K and L, divisions F, G, and G', cir-` y culating-wheelH, shaftI, and pulley J, or its equivalent, substantially as and for the purposeyspecited.

5. In a milk-cooler, thecombination of Watertank A, milkpans C,connected together by tubes D, chamber K, closed chamber L, partition F,circulating-Wheel H, shaft I, pans N, having vent-tubes n, means toconduct Water from chamber L to said pans, and means to conduct theWaste-,water back into the tank from said pans, substantially as and forthe purpose specified.

6. The Vcombination of Watertank A, milkvats C, chambers K and L,divisions F. G, and G', circulating-wheel H, shaft I, pans N, havingvents n, means to conduct Water to and from pans, and cover R,substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

MILTON O. ROBERTS.

